2021 Toyota Redundant Sienna: Reliability Data

Source: NHTSA — 223 complaints
223
Total Complaints
28,400mi
Median Mileage
SERVICE BRAKES
Top Issue
19
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

12,750 25th Percentile
28,400 Median Mileage
55,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

SERVICE BRAKES
80
UNKNOWN OR OTHER
27
SEATS
17
AIR BAGS
16
ELECTRICAL SYSTEM
13
VEHICLE SPEED CONTROL
9
POWER TRAIN
8
SEAT BELTS
8
ENGINE
8
STRUCTURE:BODY
6

Severity Assessment

19
Crashes
5
Fires
13
Injuries
0
Deaths

Sample Complaint Reports

"When the 3rd-row folding seats are down and stored and the breaks are applied suddenly the seat will release and attempt to return a nonstored position. I had a box of water on top of the seat to keep it from moving. Unfortunately when I breaked the box moved and the seat left the stored position ..."
"With the rear seat entertainment system in use, the rear visibility is completely blocked in conjunction with the standard rear view mirror. This is a major design defect and is avoidable with available options that should be standard. Without being able to utilize all possible ways to view around t..."
"Van has just over 5k miles. Multiple warnings occurred while at speed on a highway. Primary warning was 'Low Brake Power' and braking became extremely touchy as it seemed to utilize the emergency brake as a backup. This extreme braking is hazardous and could result in an accident caused by braking t..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28